Trolley-pole.



G. T. BARR, Sn. TROLLEYv POLE.

PPLIoATloN FILED AUG. s. 190e.

.91 5, 1 52. Patented Mar. 16, 1909.

akmus UNTTED sTATEs EETENT oEEroE.

GEORGE T. BARR, SR., OF WAGO,

TEXAS, ASSIGNOR OF ONE-HALF TO HENRY C. BLANDFORD, OE MEMPHIS,TENNESSEE.

TROLLEY-POLE.

ings.

This invention relates to improvements in trolley poles, and consists ofthe novel features of construction and the combination and arrangementof arts hereinafter fully described and claimedi The object of theinvention is to improve and simplify the construction and operation ofdevices of this character and to provide one which will adapt itself tothe trolley wire and which, whenA it leaves the same, may be quickly andeasily replaced by the motorman without the 'latter leaving his place atthe front of the car.

The above and other objects of the invention are attained in itspreferred embodiment illustrated in the accompanying drawings, in which-Figure 1 is a side elevation of the improved trolley pole showing it aplied to a car; Fig. 2 is a vertical section t irough the same, andFigs. 3, 4 and 5 are detail views.

In the drawings 1 denotes the top of a car and 2 one of the ends of thesame.

The im roved trolley pole consists of upper an lower telescopingsections 3, 4 each of which is tubular and the latter of Awhich ispivotally mounted in a base 5 arranged upon the car top 1. This base orhead consists of a bottom late 6 from which rise two spaced bearing pates 7 for a pivot bolt 8. This bolt passes through the lower end of thesection 4 of the pole and forms a pivot upon which the latter may beswung ongitudinally. Leaf springs 9 are arranged on opposite sides ofthe pole and have their outer and lower ends secured to the plate 6 byfastenings 10. The inner and upper ends of the springs 9 are free andbear against the front and rear faces of the pole section 4 to maintainthe latter in an upright position. Said ends of the springs also rojectbetween the plates or standards 7 an are retained in position by thesame.

The upper pole section 3 slides within the lower one 4 and it isprojected outwardly by Specification of Letters Patent.

Application led August 3, 1908.

Patented March 16, 1909.

Serial No. 446,641.

a coil spring` 11 arranged in the lower section 4 and confined betweenan annular stop shoulder 12 adjacent to the lower end of the section 4and a bottom plate 13 upon the lower end of the section 3. Said plate 13projects beyond the edge ofthe section 3 and forms an annular stopshoulder adapted to engage an inwardly extending flange 14 forming astop shoulder in the upper portion of the section 4. rlhe spring 11maintains the trolley wheel 5 at the top of the pole section 3 incontact with the trolley wire 16 and said wheel is adapted to be loweredbeneath said wire by means of an operating cord 17 attached to thebottom plate 13 and extending down through the spring 11 and the polesection 4 and around a guide pulley 13 journaled upon the pivot bolt 8at the lower open end of said section 4. The cord 17 extends from thepulley 18 to a guide pulley 19 journaled adjacent to the end 2 of thecar and from said pulley 19 to a winding drum 2O ournaled in a bracketframe 21 upon the front end of the car within convenient reach of themotorman. The shaft of the drum 2O is rovided with a crank handle 22 bymeans of which the cord 17 may be readily wound upon said drum to lowerthe trolley wheel.

The trolley wheel 15 is j ournaled at 23 in the forked upper portion ofa head 24, the lower end of which has a semicircular portion pivoted ona transverse pivot 25 in the recessed upper end of the upper polesection 3. Leaf springs 26 secured on opposite sides of the pole section3 by a clamping band 27 have their upper free ends bearing against theopposite sides of the trolley head 24 so as to maintain the latter in anupright or perpendicular position. This pivotal and spring connectionfor the head 24 permits the trolley wheel to adapt itself to the trolleywire in rounding curves and at similar places.

From the foregoing it will be seen that the springs 9 will hold the polein a perpendicular position and that the spring 11 will hold the uppersection projected and the wheel 15 against the trolley wire. Should saidwheel leave the wire, the flange or shoulder 13 will engage the flangeor shoulder 14 and prevent the two sections of the pole from separating.In such case, when it is desired to replace the wheel upon the trolleywire the motorman turns the crank22 to wind the cord 17 upon the-drum 20and thereby lower the wheel 15 beneath the wire 16. The cord 17 is thenslowly unwound so that the spring 11 projects the trolley wheel upwardlyand into engagement with the wire, it being understood that thetrolleypole is mounted in the center of the car and that the wire 16 isarranged centrally over the track.

Having thus described the invention what is claimed is: a

1. A trolley pole comprising a base having 'a bottom plate and spacedupright plates, a horizontal pivot in the latter, a pole having upperand lower tubular telescoping sections, the lower section having an.open bottom mounted on said pivot, a guide pulley journaled on saidpivot within the open bottom of the lower pole section, a spring forprojecting the upper pole section, a trolley wheel carried by the upperpole section,-oppositely disposed angular leaf springs each havingoneend secured to the bottom plate of the base, the other ends of saidsprings projecting upwardly and bearing against opposite points on thelower pole section to maintain the pole in an upright position, one ofsaid springs being formed with an opening, and a cord attached to thelower end of the upper pole section and extending through the lower 30pole section, around the guide pulley and through said opening in one ofsaid leaf springs, substantially as described.

2. A trolley pole comprising a base having a bottom plate and spacedupright plates, a

horizontal pivot in the latter, a pole having .1

ufpper and lower tubular telesco ing sections, t e lower section havingits ottom open and mounted on said pivot, stop flanges upon saidsections for limiting their sliding movement, a stop shoulder in thelower section, a coil spring in the lower section between said stopshoulder and the bottom of the upper section, a spring pressed trolleyhead pivoted to the upper section, a trolley wheel journaled in saidhead, leaf springs fixed to the base and bearing against opposite sidesofthe lower section, a guide pulley ournaled upon the pivot of thelower' section and arranged in the latter, an operating cord attached tothe upper section and extending through the coil spring and the lowersection and over said guide pulley, guides for said cord, and a windingdrum for said cord, substantially as described.

In testimony whereof l hereunto afliX my 55

